Perovskite polymer composite
AssigneeNational University of Singapore
InventorsZhi Kuang Tan, Ying-Chieh Wong, Jun De Andrew Ng, Beiye Li
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Abstract
Disclosed herein is a polymeric film, the film comprising a polymeric matrix material, a plurality of perovskite nanocrystals and/or aggregates of perovskite nanocrystals dispersed throughout the polymeric matrix material. There is also disclosed a perovskite polymer resin composition, a perovskite-polymer resin composition, a perovskite ink and a method of forming a luminescent film using any one of the compositions or ink. Preferably, the perovskite material is a lead halide perovskite containing a cation selected from Cs, an alkylammonium ion, or a formamidinium ion. The polymeric matrix is preferably formed from monomers comprising a vinyl or an acrylate group.
Claims7
A polymeric film comprising:
- a crosslinked polymeric matrix material;
- a plurality of perovskite nanocrystals and/or aggregates of perovskite nanocrystals dispersed throughout the polymeric matrix material, the perovskite material of the nanocrystals and/or aggregates having formula I:
- APbX3 I,
- wherein:
- X is a halogen anion selected from one or more of Br, Cl, I;
- A is a monovalent cation selected from one or more of Cs, an alkylammonium ion, and a formamidinium ion;
- and
- each perovskite nanocrystal and/or aggregate of perovskite nanocrystals is separated from each other perovskite nanocrystal and/or aggregate of perovskite nanocrystals by an average distance of greater than or equal to 20 nm, wherein
- the polymeric matrix material further comprises crosslinking groups.
Dependencies are inferred from the claim text.